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1. Measurement of the branching fraction of $J/\psi\rightarrow\rho\pi$ at KEDR

Author

Anashin, V. V., Anchugov, O. V., Andrianov, A. V., Astrelina, K. V., Aulchenko, V. M., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Basok, I. Yu., Batrakov, A. M., Bekhtenev, E. A., Belikov, O. V., Berkaev, D. E., Blinov, A. E., Blinov, V. E., Blinov, M. F., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bolkhovityanov, D. Yu., Bondar, A. E., Buzykaev, A. R., Cheblakov, P. B., Dorohov, V. L., Emanov, F. A., Gambaryan, V. V., Grigoriev, D. N., Kaminskiy, V. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Karukina, K. Yu., Kashtankin, D. P., Kasyanenko, P. V., Katcin, A. A., Kharlamova, T. A., Kiselev, V. A., Kononov, S. A., Krasnov, A. A., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kuyanov, I. A., Levichev, E. B., Logachev, P. V., Maksimov, D. A., Maltseva, Yu. I., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. A., Morozov, I. I., Nikiforov, D. A., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Oreshkin, S. B., Osipov, A. A., Ovtin, I. V., Pavlenko, A. V., Peleganchuk, S. V., Piminov, P. A., Podgornov, N. A., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Savinov, G. A., Shamov, A. G., Shekhtman, L. I., Shvedov, D. A., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Starostina, E. V., Sukhanov, D. P., Sukharev, A. M., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tribendis, A. G., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhukov, A. A., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

We present the study of the decay $J/\psi \rightarrow \rho\pi$. The results are based on of 5.2~million $J/\psi$ events collected by the KEDR detector at the VEPP-4M collider. The branching fractions are measured to be $\B(J/\psi \rightarrow \rho\pi) = \big(2.072\pm 0.017 \pm 0.062 \big)\cdot 10^{-2}$ and $\B(J/\psi \rightarrow \pi^+\pi^-\pi^0) = \big(1.878 \pm 0.013 \pm 0.051 \big)\cdot 10^{-2}$, where the first uncertainties are statistical and the second systematic. Our results are more precise than the previous relative measurements.

Published
2022
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2. Experiments with the KEDR Detector at the \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{e}^{ + }}{{e}^{ - }}$$\end{document} \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sqrt s $$\end{document} Collider VEPP-4M in the Energy Range \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{e}^{ + }}{{e}^{ - }}$$\end{document} \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sqrt s $$\end{document} = 1.84–3.88 GeV

Author

Anashin, V. V., Anchugov, O. V., Aulchenko, V. M., Balashov, S. A., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Bedny, I. V., Bekhtenev, E. A., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Bondarev, D. V., Buzykaev, A. R., Cheblakov, P. B., Cherepanov, V. P., Dorohov, V. L., Eidelman, S. I., Glukhov, S. A., Gluchovchenko, Yu. M., Grigoriev, D. N., Groshev, V. R., Gulevich, V. V., Gusev, D. V., Kaminskiy, V. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Karyukina, K. Yu., Kashtankin, D. P., Kasyanenko, P. V., Katcin, A. A., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. A., Kotov, K. Yu., Krasnov, A. A., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuyanov, I. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. A., Morozov, I. I., Muchnoi, N. Yu., Naumenkov, A. I., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Ovtin, I. V., Pakhotin, Yu. A., Peleganchuk, S. V., Petrosyan, S. S., Petrov, V. V., Piminov, P. A., Pivovarov, S. G., Podgornov, N. A., Poluektov, A. O., Polunin, A. A., Popkov, I. N., Pospelov, G. E., Protopopov, I. Ya., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shekhtman, L. I., Shubin, E. I., Shvedov, D. A., Shwartz, B. A., Sidorov, V. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Starostina, E. V., Struchalin, M. V., Sukhanov, D. P., Sukharev, A. M., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tribendis, A. G., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zatsepin, A. V., Zhilich, V. N., Zhukov, A. A., Zhulanov, V. V., Zhuravlev, A. N., and Yushkov, A. N.

Published
2023
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3. Measurement of the branching fraction of J/ψ → ρπ at KEDR

Author

Anashin, V. V., Anchugov, O. V., Andrianov, A. V., Astrelina, K. V., Aulchenko, V. M., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Basok, I. Yu., Batrakov, A. M., Bekhtenev, E. A., Belikov, O. V., Berkaev, D. E., Blinov, A. E., Blinov, V. E., Blinov, M. F., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bolkhovityanov, D. Yu., Bondar, A. E., Buzykaev, A. R., Cheblakov, P. B., Dorohov, V. L., Emanov, F. A., Gambaryan, V. V., Grigoriev, D. N., Kaminskiy, V. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Karukina, K. Yu., Kashtankin, D. P., Kasyanenko, P. V., Katcin, A. A., Kharlamova, T. A., Kiselev, V. A., Kononov, S. A., Krasnov, A. A., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kuyanov, I. A., Levichev, E. B., Logachev, P. V., Maksimov, D. A., Maltseva, Yu. I., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. A., Morozov, I. I., Nikiforov, D. A., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Oreshkin, S. B., Osipov, A. A., Ovtin, I. V., Pavlenko, A. V., Peleganchuk, S. V., Piminov, P. A., Podgornov, N. A., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Savinov, G. A., Shamov, A. G., Shekhtman, L. I., Shvedov, D. A., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Starostina, E. V., Sukhanov, D. P., Sukharev, A. M., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tribendis, A. G., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhukov, A. A., Zhulanov, V. V., and Zhuravlev, A. N.

Published
2023
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4. Precise measurement of $R_{\text{uds}}$ and $R$ between 1.84 and 3.72 GeV at the KEDR detector

Author

Anashin, V. V., Anchugov, O. V., Aulchenko, V. M., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Bekhtenev, E. A., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Cheblakov, P. B., Dorohov, V. L., Eidelman, S. I., Grigoriev, D. N., Glukhov, S. A., Kaminskiy, V. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Karukina, K. Yu., Kashtankin, D. P., Kasyanenko, P. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Krasnov, A. A., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuyanov, I. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. A., Morozov, I. I., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Osipov, A. A., Ovtin, I. V., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shvedov, D. A., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Sukhanov, D. P., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tribendis, A. G., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhukov, A. A., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

The present work continues a series of the KEDR measurements of the $R$ value that started in 2010 at the VEPP-4M $e^+e^-$ collider. By combining new data with our previous results in this energy range we measured the values of $R_{\text{uds}}$ and $R$ at nine center-of-mass energies between 3.08 and 3.72 GeV. The total accuracy is about or better than $2.6\%$ at most of energy points with a systematic uncertainty of about $1.9\%$. Together with the previous precise $R$ measurement at KEDR in the energy range 1.84-3.05 GeV, it constitutes the most detailed high-precision $R$ measurement near the charmonium production threshold., Comment: arXiv admin note: text overlap with arXiv:1610.02827 and substantial text overlap with arXiv:1510.02667

Published
2018
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5. Measurement of $\Gamma_{ee}\times\mathcal{B}_{\mu\mu}$ for $\psi(2S)$ meson

Author

Anashin, V. V., Anchugov, O. V., Aulchenko, V. M., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Bekhtenev, E. A., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Cheblakov, P. B., Dorohov, V. L., Eidelman, S. I., Grigoriev, D. N., Glukhov, S. A., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Karukina, K. Yu., Kashtankin, D. P., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Krasnov, A. A., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuyanov, I. A., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. A., Morozov, I. I., Muchnoi, N. Yu., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Osipov, A. A., Ovtin, I. V., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shvedov, D. A., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Sukhanov, D. P., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tribendis, A. G., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhukov, A. A., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

The product of the electronic width of the $\psi(2S)$ meson and the branching fraction of its decay to the muon pair was measured in the $e^{+}e^{-} \to \psi(2S) \to \mu^{+}\mu^{-}$ process using nine data sets corresponding to an integrated luminosity of about 6.5 pb$^{-1}$ collected with the KEDR detector at the VEPP-4M electron-positron collider: \[ \Gamma_{ee}\times\mathcal{B}_{\mu\mu} = 19.3 \pm 0.3 \pm 0.5 ~\text{eV}. \] Adding the previous KEDR results on hadronic and leptonic channels, the values of the $\psi(2S)$ electronic width were obtained under two assumptions: either with the assumption of lepton universality \[ \Gamma_{ee} = 2.279 \pm 0.015 \pm 0.042 ~\text{keV} \] or without it, summing up hadronic and three independent leptonic channels: \[ \Gamma_{ee} = 2.282 \pm 0.015 \pm 0.042 ~\text{keV}. \]

Published
2018
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6. Measurement of J/ψ2(π+π-)π0,K+K-π+π-π0,2(π+π-)K+K-π+π- decays into final states J/ψ2(π+π-)π0,K+K-π+π-π0,2(π+π-)K+K-π+π- and J/ψ2(π+π-)π0,K+K-π+π-π0,2(π+π-)K+K-π+π-

Author

Anashin, V. V., Anchugov, O. V., Aulchenko, V. M., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Bekhtenev, E. A., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Cheblakov, P. B., Dorohov, V. L., Eidelman, S. I., Glukhov, S. A., Grigoriev, D. N., Kaminskiy, V. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Karukina, K. Yu., Kashtankin, D. P., Katsin, A. A., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Krasnov, A. A., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kuper, E. A., Kurkin, G. Ya., Kuyanov, I. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. A., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Osipov, A. A., Ovtin, I. V., Peleganchuk, S. V., Petrov, V. V., Piminov, P. A., Pivovarov, S. G., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shekhtman, L. I., Shvedov, D. A., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Starostina, E. V., Sukhanov, D. P., Sukharev, A. M., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tribendis, A. G., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhukov, A. A., Zhulanov, V. V., and Zhuravlev, A. N.

Published
2022
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7. Measurement of $R$ between 1.84 and 3.05 GeV at the KEDR detector

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kasyanenko, P. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuyanov, I. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Osipov, A. A., Ovtin, I. V., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

Using the KEDR detector at the VEPP-4M $e^+e^-$ collider, we have determined the values of $R$ at thirteen points of the center-of-mass energy between 1.84 and 3.05 GeV. The achieved accuracy is about or better than $3.9\%$ at most of the energy points with a systematic uncertainty less than $2.4\%$.

Published
2016
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8. Measurement of $R_{\text{uds}}$ and $R$ between 3.12 and 3.72 GeV at the KEDR detector

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kasyanenko, P. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuyanov, I. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Osipov, A. A., Ovtin, I. V., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

Using the KEDR detector at the VEPP-4M $e^+e^-$ collider, we have measured the values of $R_{\text{uds}}$ and $R$ at seven points of the center-of-mass energy between 3.12 and 3.72 GeV. The total achieved accuracy is about or better than $3.3\%$ at most of energy points with a systematic uncertainty of about $2.1\%$. At the moment it is the most accurate measurement of $R(s)$ in this energy range.

Published
2015
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9. Measurement of $J/\psi\to\gamma\eta_{\rm c}$ decay rate and $\eta_{\rm c}$ parameters at KEDR

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Bedny, I. V., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Pospelov, G. E., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

Using the inclusive photon spectrum based on a data sample collected at the $J/\psi$ peak with the KEDR detector at the VEPP-4M $e^+e^-$ collider, we measured the rate of the radiative decay $J/\psi\to\gamma\eta_{\rm c}$ as well as $\eta_{\rm c}$ mass and width. Taking into account an asymmetric photon lineshape we obtained $\Gamma^0_{\gamma\eta_{\rm c}}=2.98\pm0.18 \phantom{|}^{+0.15}_{-0.33}$ keV, $M_{\eta_{\rm c}} = 2983.5 \pm 1.4 \phantom{|}^{+1.6}_{-3.6}$ MeV/$c^2$, $\Gamma_{\eta_{\rm c}} = 27.2 \pm 3.1 \phantom{|}^{+5.4}_{-2.6}$ MeV., Comment: 6 pages, 3 figures

Published
2014
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10. Parameters of charmonium states from KEDR

Author

KEDR Collaboration, Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Groshev, V. R., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Kuyanov, I. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Ovtin, I. V., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

We report results of experiments performed with the KEDR detector at the VEPP-4M $e^+e^-$ collider. They include final results for the mass and other parameters of the $J/\psi$, $\psi(2S)$ and $\psi(3770)$ and $J/\psi\to\gamma\eta_c$ branching fraction determination., Comment: 5 pages, 6 figures, PhiPsi 2013, International Workshop on e+e- collisions from Phi to Psi. September 9-12, 2013, Rome, Italy

Published
2013

11. Measurement of the ratio of the leptonic widths $\Gamma_{ee}/\Gamma_{\mu\mu}$ for the $J/\psi$ meson

Author

KEDR Collaboration, Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Groshev, V. R., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

The ratio of the electron and muon widths of the $J/\psi$ meson has been measured using direct $J/\psi$ decays in the KEDR experiment at the VEPP-4M electron-positron collider. The result $\Gamma_{ee}(J/\psi)/\Gamma_{\mu\mu}(J/\psi)=1.0022\pm0.0044\pm0.0048\ (0.65\%)$ is in good agreement with the lepton universality. The experience collected during this analysis will be used for a $J/\psi$ lepton width determination with up to 1% accuracy., Comment: 5 pages, 6 figures, 2 tables

Published
2013
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12. Measurement of J/psi leptonic width with the KEDR detector

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

We report a new precise determination of the leptonic widths of the J/psi meson performed with the KEDR detector at the VEPP-4M $e^{+}e^{-}$ collider. The measured values of the J/psi parameters are: \Gamma_{ee}\times\Gamma_{ee}/\Gamma = 0.3323 \pm 0.0064 (stat.) \pm 0.0048 (syst.) keV \Gamma_{ee}\times\Gamma_{\mu\mu}/\Gamma=0.3318 \pm 0.0052 (stat.) \pm 0.0063 (syst.) keV. Assuming $e\mu$ universality and using the table value of the branching ratios the leptonic \Gamma_{ll}= 5.59 \pm 0.12 keV width and the total \Gamma=94.1 \pm 2.7 keV widths were obtained. We also discuss in detail a method to calculate radiative corrections at a narrow resonance., Comment: Published in proceedings of the PhiPsi 2009 conference

Published
2011

13. Measurement of \psi(3770) parameters

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

We report the final results of a study of the \psi(3770) meson using a data sample collected with the KEDR detector at the VEPP-4M electron-positron collider. The data analysis takes into account the interference between the resonant and nonresonant $D\bar{D}$ production, where the latter is related to the nonresonant part of the energy-dependent form factor $F_D$. The vector dominance approach and several empirical parameterizations have been tried for the nonresonant $F_D^{\NR}(s)$. Our results for the mass and total width of \psi(3770) are M = 3779.2 ^{+1.8}_{-1.7} ^{+0.5}_{-0.7} ^{+0.3}_{-0.3} MeV, \Gamma =24.9 ^{+4.6}_{-4.0} ^{+0.5}_{-0.6} ^{+0.2}_{-0.9} MeV, where the first, second and third uncertainties are statistical, systematic and model, respectively. For the electron partial width two possible solutions have been found: (1) \Gamma_{ee} = 154 ^{+79}_{-58} ^{+17}_{-9} ^{+13}_{-25} eV, (2) \Gamma_{ee} = 414 ^{+72}_{-80} ^{+24}_{-26} ^{+90}_{-10} eV. Our statistics are insufficient to prefer one solution to another. The solution (2) mitigates the problem of non-$D\bar{D}$ decays but is disfavored by potential models. It is shown that taking into account the resonance--continuum interference in the near-threshold region affects resonance parameters, thus the results presented can not be directly compared with the corresponding PDG values obtained ignoring this effect.

Published
2011
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14. Measurement of main parameters of the \psi(2S) resonance

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

A high-precision determination of the main parameters of the \psi(2S) resonance has been performed with the KEDR detector at the VEPP-4M e^{+}e^{-} collider in three scans of the \psi(2S) -- \psi(3770) energy range. Fitting the energy dependence of the multihadron cross section in the vicinity of the \psi(2S) we obtained the mass value M = 3686.114 +- 0.007 +- 0.011 ^{+0.002}_{-0.012} MeV and the product of the electron partial width by the branching fraction into hadrons \Gamma_{ee}*B_{h} = 2.233 +- 0.015 +- 0.037 +- 0.020 keV. The third error quoted is an estimate of the model dependence of the result due to assumptions on the interference effects in the cross section of the single-photon e^{+}e^{-} annihilation to hadrons explicitly considered in this work. Implicitly, the same assumptions were employed to obtain the charmonium leptonic width and the absolute branching fractions in many experiments. Using the result presented and the world average values of the electron and hadron branching fractions, one obtains the electron partial width and the total width of the \psi(2S): \Gamma_{ee} =2.282 +- 0.015 +- 0.038 +- 0.021 keV, \Gamma = 296 +- 2 +- 8 +- 3 keV. These results are consistent with and more than two times more precise than any of the previous experiments.

Published
2011
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15. Search for narrow resonances in e+ e- annihilation between 1.85 and 3.1 GeV with the KEDR Detector

Author

KEDR Collaboration, Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

We report results of a search for narrow resonances in e+ e- annihilation at center-of-mass energies between 1.85 and 3.1 GeV performed with the KEDR detector at the VEPP-4M e+ e- collider. The upper limit on the leptonic width of a narrow resonance Gamma(R -> ee) Br(R -> hadr) < 120 eV has been obtained (at 90 % C.L.).

Published
2011
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16. Measurement of B(J/psi->eta_c gamma) at KEDR

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Bedny, I. V., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Milstein, A. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Shatilov, D. N., Pospelov, G. E., Prisekin, V. G., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skovpen, Yu. I., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment
Abstract

We present a study of the inclusive photon spectrum from 6.3 million J/psi decays collected with the KEDR detector at the VEPP-4M e+e- collider. We measure the branching fraction of the radiative decay J/psi -> eta_c gamma, eta_c width and mass. Taking into account an asymmetric photon line shape we obtain: M(eta_c) = (2978.1 +- 1.4 +- 2.0) MeV/c^2, Gamma(eta_c) = (43.5 +- 5.4 +- 15.8) MeV, B(J/psi->eta_c gamma) = (2.59 +- 0.16 +- 0.31)%$., Comment: 6 pages, 1 figure. To be published in the proceedings of the 4th International Workshop on Charm Physics (Charm2010), October 21-24, 2010, IHEP, Beijing

Published
2010
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17. Measurement of $$J/\psi $$ decays into final states $$2(\pi ^{+}\pi ^{-})\pi ^{0},K^{+}K^{-}\pi ^{+}\pi ^{-}\pi ^{0},\,2(\pi ^{+}\pi ^{-})$$ and $$K^{+}K^{-}\pi ^{+}\pi ^{-}$$

Author

Anashin, V. V., primary, Anchugov, O. V., additional, Aulchenko, V. M., additional, Baldin, E. M., additional, Baranov, G. N., additional, Barladyan, A. K., additional, Barnyakov, A. Yu., additional, Barnyakov, M. Yu., additional, Baru, S. E., additional, Basok, I. Yu., additional, Batrakov, A. M., additional, Bekhtenev, E. A., additional, Blinov, A. E., additional, Blinov, V. E., additional, Bobrov, A. V., additional, Bobrovnikov, V. S., additional, Bogomyagkov, A. V., additional, Bondar, A. E., additional, Buzykaev, A. R., additional, Cheblakov, P. B., additional, Dorohov, V. L., additional, Eidelman, S. I., additional, Glukhov, S. A., additional, Grigoriev, D. N., additional, Kaminskiy, V. V., additional, Karnaev, S. E., additional, Karpov, G. V., additional, Karpov, S. V., additional, Karukina, K. Yu., additional, Kashtankin, D. P., additional, Katsin, A. A., additional, Kharlamova, T. A., additional, Kiselev, V. A., additional, Kolmogorov, V. V., additional, Kononov, S. A., additional, Kotov, K. Yu., additional, Krasnov, A. A., additional, Kravchenko, E. A., additional, Kudryavtsev, V. N., additional, Kulikov, V. F., additional, Kuper, E. A., additional, Kurkin, G. Ya., additional, Kuyanov, I. A., additional, Levichev, E. B., additional, Maksimov, D. A., additional, Malyshev, V. M., additional, Maslennikov, A. L., additional, Meshkov, O. I., additional, Mishnev, S. I., additional, Morozov, I. A., additional, Morozov, I. I., additional, Muchnoi, N. Yu., additional, Neufeld, V. V., additional, Nikitin, S. A., additional, Nikolaev, I. B., additional, Okunev, I. N., additional, Onuchin, A. P., additional, Oreshkin, S. B., additional, Osipov, A. A., additional, Ovtin, I. V., additional, Peleganchuk, S. V., additional, Petrov, V. V., additional, Piminov, P. A., additional, Pivovarov, S. G., additional, Prisekin, V. G., additional, Rezanova, O. L., additional, Ruban, A. A., additional, Sandyrev, V. K., additional, Savinov, G. A., additional, Shamov, A. G., additional, Shatilov, D. N., additional, Shekhtman, L. I., additional, Shvedov, D. A., additional, Shwartz, B. A., additional, Simonov, E. A., additional, Sinyatkin, S. V., additional, Skrinsky, A. N., additional, Sokolov, A. V., additional, Starostina, E. V., additional, Sukhanov, D. P., additional, Sukharev, A. M., additional, Talyshev, A. A., additional, Tayursky, V. A., additional, Telnov, V. I., additional, Tikhonov, Yu. A., additional, Todyshev, K. Yu., additional, Tribendis, A. G., additional, Tumaikin, G. M., additional, Usov, Yu. V., additional, Vorobiov, A. I., additional, Zhilich, V. N., additional, Zhukov, A. A., additional, Zhulanov, V. V., additional, and Zhuravlev, A. N., additional

Published
2022
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18. Charm at KEDR

Author

Kharlamova, Tatyana, primary, Anashin, V. V, additional, Anchugov, O. V., additional, Andrianov, A., additional, Astrelina, K., additional, Aulchenko, V. M., additional, Baldin, E. M., additional, Baranov, G. N., additional, Barladyan, A. K., additional, Barnyakov, A. Yu., additional, Barnyakov, M. Yu., additional, Baru, S. E., additional, Basok, I. Yu., additional, Bekhtenev, E. A., additional, Belikov, O., additional, Berkaev, D. E., additional, Blinov, A. E., additional, Blinov, V. E., additional, Blinov, M., additional, Bobrov, A. V., additional, Bobrovnikov, V. S., additional, Bogomyagkov, A. V., additional, Bolkhovityanov, D. Yu., additional, Bondar, A. E., additional, Buzykaev, A. R., additional, Cheblakov, P. B., additional, Dorohov, V. L., additional, Eidelman, S. I., additional, Emanov, F., additional, Gambaryan, V. V., additional, Glukhov, S. A., additional, Grigoriev, D. N., additional, Kaminskiy, V. V., additional, Karnaev, S. E., additional, Karpov, S. V., additional, Karpov, G. V., additional, Karukina, K. Yu., additional, Kashtankin, D. P., additional, Kasyanenko, P. V., additional, Katcin, A. A., additional, Kiselev, V. A., additional, Kononov, S. A., additional, Kotov, K. Yu., additional, Krasnov, A., additional, Kravchenko, E., additional, Kudryavtsev, V. N., additional, Kulikov, V. F., additional, Kurkin, G. Yu., additional, Kuyanov, I. A., additional, Levichev, E. B., additional, Logachev, P. V., additional, Maksimov, D. A., additional, Maltseva, Yu. I., additional, Malyshev, V. M., additional, Maslennikov, A. L., additional, Meshkov, O. I., additional, Mishnev, S. E., additional, Morozov, I. I., additional, Muchnoi, N. Yu., additional, Nikiforov, D., additional, Nikitin, S. A., additional, Nikolaev, I. B., additional, Okunev, I. N., additional, Onuchin, A. P., additional, Oreshkin, S. B., additional, Oreshonok, V. V., additional, Osipov, A. V., additional, Ovtin, I. V., additional, Pavlenko, A. V., additional, Peleganchuk, S. V., additional, Petrov, V. V., additional, Piminov, P. A., additional, Pivovarov, S. G., additional, Podgornov, N. A., additional, Prisekin, V. G., additional, Rezanova, O. L., additional, Ruban, A. A, additional, Savinov, G. A., additional, Shamov, A. G., additional, Shekhtman, L. I., additional, Shvedov, D. A., additional, Shwartz, B. A., additional, Simonov, E. A., additional, Sinyatkin, S. V., additional, Skrinsky, A. N., additional, Sokolov, A. V., additional, Starostina, E. V., additional, Sukhanov, D. P., additional, Sukharev, A. M., additional, Talyshev, A. A, additional, Tayursky, V. A., additional, Telnov, V. I., additional, Tikhonov, Yu. A., additional, Todyshev, K. Yu., additional, Tribendis, A., additional, Tumaikin, G. M., additional, Usov, Yu. V., additional, Vorobiov, A. I., additional, Zhilich, V. N., additional, Zhukov, A. A., additional, Zhulanov, V. V., additional, and Zhuravlev, A. N., additional

Published
2021
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19. Measurement of J/ψ decays into final states 2(π+π-)π0,K+K-π+π-π0,2(π+π-) and K+K-π+π-.

Author

Anashin, V. V., Anchugov, O. V., Aulchenko, V. M., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Batrakov, A. M., Bekhtenev, E. A., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., and Cheblakov, P. B.

Subjects
MESON decay, MEASUREMENT
Abstract

Using the 1.32 pb - 1 statistics collected at the J / ψ peak with the KEDR detector at the VEPP-4M e + e - collider, we measured the branching fractions of J / ψ meson decays to the final states 2( π + π -) π 0 , K + K - π + π - π 0 , 2( π + π -) and K + K - π + π - . The results obtained for the decays J / ψ → 2( π + π -) π 0 , J / ψ → K + K - π + π - π 0 contradict the measurements performed by other groups in the last century, but agree well with recent results of BABAR and BESIII collaborations. [ABSTRACT FROM AUTHOR]

Published
2022
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20. The KEDR detector

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Bedny, I. V., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bondar, A. E., Buzykaev, A. R., Vorobiov, A. I., Gulevich, V. V., Dneprovsky, L. V., Zhilich, V. N., Zhulanov, V. V., Karpov, G. V., Karpov, S. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kuzmin, A. S., Kulikov, V. F., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Muchnoi, N. Yu., Nikitin, S. A., Nikolaev, I. B., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Poluektov, A. O., Pospelov, G. E., Prisekin, V. G., Rodyakin, V. A., Ruban, A. A., Savinov, G. A., Skovpen, Yu. I., Skrinsky, A. N., Smalyuk, V. V., Snopkov, R. G., Sokolov, A. V., Sukharev, A. M., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Usov, Yu. V., Kharlamova, T. A., Shamov, A. G., Shwartz, B. A., Shekhtman, L. I., Shusharo, A. I., and Yushkov, A. N.

Published
2013
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21. Measurement of main parameters of the ��(2S) resonance

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment
Abstract

A high-precision determination of the main parameters of the ��(2S) resonance has been performed with the KEDR detector at the VEPP-4M e^{+}e^{-} collider in three scans of the ��(2S) -- ��(3770) energy range. Fitting the energy dependence of the multihadron cross section in the vicinity of the ��(2S) we obtained the mass value M = 3686.114 +- 0.007 +- 0.011 ^{+0.002}_{-0.012} MeV and the product of the electron partial width by the branching fraction into hadrons ��_{ee}*B_{h} = 2.233 +- 0.015 +- 0.037 +- 0.020 keV. The third error quoted is an estimate of the model dependence of the result due to assumptions on the interference effects in the cross section of the single-photon e^{+}e^{-} annihilation to hadrons explicitly considered in this work. Implicitly, the same assumptions were employed to obtain the charmonium leptonic width and the absolute branching fractions in many experiments. Using the result presented and the world average values of the electron and hadron branching fractions, one obtains the electron partial width and the total width of the ��(2S): ��_{ee} =2.282 +- 0.015 +- 0.038 +- 0.021 keV, ��= 296 +- 2 +- 8 +- 3 keV. These results are consistent with and more than two times more precise than any of the previous experiments.

Published
2011
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22. Measurement of ��(3770) parameters

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelman, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., Gulevich, V. V., Gusev, D. V., Karnaev, S. E., Karpov, G. V., Karpov, S. V., Kharlamova, T. A., Kiselev, V. A., Kolmogorov, V. V., Kononov, S. A., Kotov, K. Yu., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya., Kuper, E. A., Levichev, E. B., Maksimov, D. A., Malyshev, V. M., Maslennikov, A. L., Medvedko, A. S., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Muchnoi, N. Yu., Neufeld, V. V., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Orlov, I. O., Osipov, A. A., Peleganchuk, S. V., Pivovarov, S. G., Piminov, P. A., Petrov, V. V., Poluektov, A. O., Prisekin, V. G., Ruban, A. A., Sandyrev, V. K., Savinov, G. A., Shamov, A. G., Shatilov, D. N., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Smaluk, V. V., Sokolov, A. V., Sukharev, A. M., Starostina, E. V., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu. A., Todyshev, K. Yu., Tumaikin, G. M., Usov, Yu. V., Vorobiov, A. I., Yushkov, A. N., Zhilich, V. N., Zhulanov, V. V., and Zhuravlev, A. N.

Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences
Abstract

We report the final results of a study of the ��(3770) meson using a data sample collected with the KEDR detector at the VEPP-4M electron-positron collider. The data analysis takes into account the interference between the resonant and nonresonant $D\bar{D}$ production, where the latter is related to the nonresonant part of the energy-dependent form factor $F_D$. The vector dominance approach and several empirical parameterizations have been tried for the nonresonant $F_D^{\NR}(s)$. Our results for the mass and total width of ��(3770) are M = 3779.2 ^{+1.8}_{-1.7} ^{+0.5}_{-0.7} ^{+0.3}_{-0.3} MeV, ��=24.9 ^{+4.6}_{-4.0} ^{+0.5}_{-0.6} ^{+0.2}_{-0.9} MeV, where the first, second and third uncertainties are statistical, systematic and model, respectively. For the electron partial width two possible solutions have been found: (1) ��_{ee} = 154 ^{+79}_{-58} ^{+17}_{-9} ^{+13}_{-25} eV, (2) ��_{ee} = 414 ^{+72}_{-80} ^{+24}_{-26} ^{+90}_{-10} eV. Our statistics are insufficient to prefer one solution to another. The solution (2) mitigates the problem of non-$D\bar{D}$ decays but is disfavored by potential models. It is shown that taking into account the resonance--continuum interference in the near-threshold region affects resonance parameters, thus the results presented can not be directly compared with the corresponding PDG values obtained ignoring this effect.

Published
2011
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23. New drift chamber for the KEDR detector

Author

Basok, I Yu, primary, Blinov, V E, additional, Bykov, A V, additional, Kharlamova, T A, additional, Prisekin, V G, additional, Rodyakin, V A, additional, Savinov, G A, additional, Shamov, A G, additional, and Todyshev, K Yu, additional

Published
2014
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24. PARAMETERS OF CHARMONIUM STATES FROM KEDR

Author

AULCHENKO, V. M., primary, BALDIN, E. M., additional, BARLADYAN, A. K., additional, BARNYAKOV, A. YU., additional, BARNYAKOV, M. YU., additional, BARU, S. E., additional, BASOK, I. YU., additional, BATRAKOV, A. M., additional, BLINOV, A. E., additional, BLINOV, V. E., additional, BOBROV, A. V., additional, BOBROVNIKOV, V. S., additional, BOGOMYAGKOV, A. V., additional, BONDAR, A. E., additional, BUZYKAEV, A. R., additional, EIDELMAN, S. I., additional, GRIGORIEV, D. N., additional, GROSHEV, V. R., additional, GLUKHOVCHENKO, YU. M., additional, GULEVICH, V. V., additional, GUSEV, D. V., additional, KARNAEV, S. E., additional, KARPOV, G. V., additional, KARPOV, S. V., additional, KHARLAMOVA, T. A., additional, KISELEV, V. A., additional, KOLMOGOROV, V. V., additional, KONONOV, S. A., additional, KOTOV, K. YU., additional, KRAVCHENKO, E. A., additional, KUDRYAVTSEV, V. N., additional, KULIKOV, V. F., additional, KURKIN, G. YA., additional, KUPER, E. A., additional, KUYANOV, I. A., additional, LEVICHEV, E. B., additional, MAKSIMOV, D. A., additional, MALYSHEV, V. M., additional, MASLENNIKOV, A. L., additional, MESHKOV, O. I., additional, MISHNEV, S. I., additional, MOROZOV, I. I., additional, MUCHNOI, N. YU., additional, NEUFELD, V. V., additional, NIKITIN, S. A., additional, NIKOLAEV, I. B., additional, OKUNEV, I. N., additional, ONUCHIN, A. P., additional, ORESHKIN, S. B., additional, ORLOV, I. O., additional, OSIPOV, A. A., additional, OVTIN, I. V., additional, PELEGANCHUK, S. V., additional, PIVOVAROV, S. G., additional, PIMINOV, P. A., additional, PETROV, V. V., additional, POLUEKTOV, A. O., additional, PRISEKIN, V. G., additional, REZANOVA, O. L., additional, RUBAN, A. A., additional, SANDYREV, V. K., additional, SAVINOV, G. A., additional, SHAMOV, A. G., additional, SHATILOV, D. N., additional, SHWARTZ, B. A., additional, SIMONOV, E. A., additional, SINYATKIN, S. V., additional, SKRINSKY, A. N., additional, SOKOLOV, A. V., additional, SUKHAREV, A. M., additional, STAROSTINA, E. V., additional, TALYSHEV, A. A., additional, TAYURSKY, V. A., additional, TELNOV, V. I., additional, TIKHONOV, YU. A., additional, TODYSHEV, K. YU., additional, TUMAIKIN, G. M., additional, USOV, YU. V., additional, VOROBIOV, A. I., additional, ZHILICH, V. N., additional, ZHULANOV, V. V., additional, and ZHURAVLEV, A. N., additional

Published
2014
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25. STUDY OF ψ(2S) → μ+μ- DECAY WITH KEDR DETECTOR

Author

AULCHENKO, V. M., primary, BALDIN, E. M., additional, BARLADYAN, A. K., additional, BARNYAKOV, A. Yu., additional, BARNYAKOV, M. Yu., additional, BARU, S. E., additional, BASOK, I. Yu., additional, BATRAKOV, A. M., additional, BLINOV, A. E., additional, BLINOV, V. E., additional, BOBROV, A. V., additional, BOBROVNIKOV, V. S., additional, BOGOMYAGKOV, A. V., additional, BONDAR, A. E., additional, BUZYKAEV, A. R., additional, EIDELMAN, S. I., additional, GRIGORIEV, D. N., additional, GROSHEV, V. R., additional, GLUKHOVCHENKO, Yu. M., additional, GULEVICH, V. V., additional, GUSEV, D. V., additional, KARNAEV, S. E., additional, KARPOV, G. V., additional, KARPOV, S. V., additional, KHARLAMOVA, T. A., additional, KISELEV, V. A., additional, KOLMOGOROV, V. V., additional, KONONOV, S. A., additional, KOTOV, K. Yu., additional, KRAVCHENKO, E. A., additional, KUDRYAVTSEV, V. N., additional, KULIKOV, V. F., additional, KURKIN, G. YA., additional, KUPER, E. A., additional, KUYANOV, I. A., additional, LEVICHEV, E. B., additional, MAKSIMOV, D. A., additional, MALYSHEV, V. M., additional, MASLENNIKOV, A. L., additional, MESHKOV, O. I., additional, MISHNEV, S. I., additional, MOROZOV, I. I., additional, MUCHNOI, N. Yu., additional, NEUFELD, V. V., additional, NIKITIN, S. A., additional, NIKOLAEV, I. B., additional, OKUNEV, I. N., additional, ONUCHIN, A. P., additional, ORESHKIN, S. B., additional, ORLOV, I. O., additional, OSIPOV, A. A., additional, OVTIN, I. V., additional, PELEGANCHUK, S. V., additional, PIVOVAROV, S. G., additional, PIMINOV, P. A., additional, PETROV, V. V., additional, POLUEKTOV, A. O., additional, PRISEKIN, V. G., additional, REZANOVA, O. L., additional, RUBAN, A. A., additional, SANDYREV, V. K., additional, SAVINOV, G. A., additional, SHAMOV, A. G., additional, SHATILOV, D. N., additional, SHWARTZ, B. A., additional, SIMONOV, E. A., additional, SINYATKIN, S. V., additional, SKRINSKY, A. N., additional, SUKHAREV, A. M., additional, SOKOLOV, A. V., additional, STAROSTINA, E. V., additional, TALYSHEV, A. A., additional, TAYURSKY, V. A., additional, TELNOV, V. I., additional, TIKHONOV, Yu. A., additional, TODYSHEV, K. Yu., additional, TUMAIKIN, G. M., additional, USOV, Yu. V., additional, VOROBIOV, A. I., additional, ZHILICH, V. N., additional, ZHULANOV, V. V., additional, and ZHURAVLEV, A. N., additional

Published
2014
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26. STUDY OF ψ(2S) → μ+μ- DECAY WITH KEDR DETECTOR.

Author

AULCHENKO, V. M., BALDIN, E. M., BARLADYAN, A. K., BARNYAKOV, A. Yu., BARNYAKOV, M. Yu., BARU, S. E., BASOK, I. Yu., BATRAKOV, A. M., BLINOV, A. E., BLINOV, V. E., BOBROV, A. V., BOBROVNIKOV, V. S., BOGOMYAGKOV, A. V., BONDAR, A. E., BUZYKAEV, A. R., EIDELMAN, S. I., GRIGORIEV, D. N., GROSHEV, V. R., GLUKHOVCHENKO, Yu. M., and GULEVICH, V. V.

Published
2014
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27. Recent Results from the KEDR Detector.

Author

Anashin, V. V., Aulchenko, V. M., Baldin, E. M., Barladyan, A. K., Barnyakov, A. Yu., Barnyakov, M. Yu., Baru, S. E., Basok, I. Yu., Beloborodova, O. L., Blinov, A. E., Blinov, V. E., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bondar, A. E., Buzykaev, A. R., Eidelmana, S. I., Grigoriev, D. N., Glukhovchenko, Yu. M., and Gulevich, V. V.

Subjects
DETECTORS, COLLIDERS (Nuclear physics), ELECTRONS, MUONS, RESONANCE
Abstract

We describe recent results from the KEDR detector at the VEPP-4M collider. They include: a search for narrow resonances between 1.85 and 3.1 GeV, a test of leptonic universality by comparing partial widths of the J/ψ resonance into electron and muon pairs, a determination of the main parameters of the ψ(2S ) and a measurement of ψ(3770) parameters. [ABSTRACT FROM AUTHOR]

Published
2012
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28. Charm at KEDR

Author

Anashin, V. V., Anchugov, O. V., Andrianov, A. V., Astrelina, K. V., Aulchenko, V. M., Baldin, E. M., Baranov, G. N., Barladyan, A. K., Barnyakov, A. Yu, Barnyakov, M. Yu, Baru, S. E., Basok, I. Yu, Bekhtenev, E. A., Belikov, O. V., Berkaev, D. E., Blinov, A. E., Blinov, V. E., Blinov, M. F., Bobrov, A. V., Bobrovnikov, V. S., Bogomyagkov, A. V., Bolkhovityanov, D. Yu, Bondar, A. E., Buzykaev, A. R., Cheblakov, P. B., Dorohov, V. L., Eidelman, S. I., Emanov, F. A., Gambaryan, V. V., Glukhov, S. A., Grigoriev, D. N., Kaminskiy, V. V., Karnaev, S. E., Karpov, S. V., Karpov, G. V., Karukina, K. Yu, Kashtankin, D. P., Kasyanenko, P. V., Katcin, A. A., Kharlamova, T. A., Kiselev, V. A., Sergey Kononov, Kotov, K. Yu, Krasnov, A. A., Kravchenko, E. A., Kudryavtsev, V. N., Kulikov, V. F., Kurkin, G. Ya, Kuyanov, I. A., Levichev, E. B., Logachev, P. V., Maksimov, D. A., Maltseva, Yu I., Malyshev, V. M., Maslennikov, A. L., Meshkov, O. I., Mishnev, S. I., Morozov, I. I., Morozov, I. A., Muchnoi, N. Yu, Nikiforov, D. A., Nikitin, S. A., Nikolaev, I. B., Okunev, I. N., Onuchin, A. P., Oreshkin, S. B., Oreshonok, V. V., Osipov, A. A., Ovtin, I. V., Pavlenko, A. V., Peleganchuk, S. V., Petrov, V. V., Piminov, P. A., Pivovarov, S. G., Podgornov, N. A., Prisekin, V. G., Rezanova, O. L., Ruban, A. A., Savinov, G. A., Shamov, A. G., Shekhtman, L. I., Shvedov, D. A., Shwartz, B. A., Simonov, E. A., Sinyatkin, S. V., Skrinsky, A. N., Sokolov, A. V., Starostina, E. V., Sukhanov, D. P., Sukharev, A. M., Talyshev, A. A., Tayursky, V. A., Telnov, V. I., Tikhonov, Yu A., Todyshev, K. Yu, Tribendis, A. G., Tumaikin, G. M., Usov, Yu V., Vorobiov, A. I., Zhilich, V. N., Zhukov, A. A., Zhulanov, V. V., and Zhuravlev, A. N.

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